The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2025
Filed:
Jul. 18, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Masanori Yamada, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A learning apparatus includes: a first estimation unit—configured to learn normal communication data, estimate probability density of the normal communication data, and update a parameter of a model; a clustering unit configured to cluster the normal communication data according to the probability density estimated by the first estimation unit; a second estimation unit configured to perform learning for each of clusters resulting from the clustering by the clustering unit, and estimate the probability density of the normal communication data of the cluster and update a parameter of a model representing characteristics of the probability density of the normal communication data of the cluster by using, as an initial value of the parameter, a parameter having already been learned in the first estimation unit; and an integration unit configured to integrate the estimated probability density of the clusters.